Supporting rod ball head connecting structure

Abstract

The utility model discloses a supporting rod ball head connecting structure which comprises a nut rod and an upper outer sleeve coaxially arranged outside the nut rod in a sleeved mode, a spring is arranged inside the upper outer sleeve in a sleeved mode, the spring is coaxially arranged outside the nut rod, when the upper outer sleeve moves downwards, the spring is compressed, and when the upper outer sleeve moves downwards, the upper outer sleeve compresses the spring. At the moment, the upper end of the nut rod is inserted into the outer portion of the upper outer sleeve in a penetrating mode, a riveting nut is installed at the upper end of the nut rod, and an upper ball seat is detachably matched with the upper end of the nut rod through the riveting nut. According to the device, a split structure is adopted, the nut rod and the riveting nut are riveted and fixed, the riveting nut and the upper ball seat are of a detachable structure, when repair is needed, the upper ball seat can be exposed upwards only by moving the upper outer sleeve downwards, overall disassembly is facilitated, the rejection rate of parts is reduced, and most parts can be reused.

Description

Technical Field

[0001] The utility model relates to a support rod ball head connection structure. Background Art

[0002] Many electric strut nut rods on the market are directly connected to the ball seat by crimping. During the rework and repair process, the crimping structure must be destroyed before it can be disassembled and repaired, resulting in the inability to reuse the components (such as the nut rod in the screw assembly), causing a lot of parts waste.

[0003] Based on the above problems, we designed a strut ball head connection structure that is easy to repair and reduces parts waste. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a support rod ball head connection structure which is easy to repair and reduces the waste of parts.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A strut ball head connection structure includes a nut rod and an upper sleeve coaxially sleeved on the outside of the nut rod, a spring sleeved inside the upper sleeve, and the spring coaxially arranged on the outside of the nut rod. When the upper sleeve moves downward, the spring is compressed, and the upper end of the nut rod is inserted into the outside of the upper sleeve. A rivet nut is installed on the upper end of the nut rod, and an upper ball seat is detachably matched through the rivet nut.

[0007] Preferably, a ball seat insert is embedded in the bottom of the upper ball seat, and the rivet nut is threadedly connected to the ball seat insert.

[0008] Preferably, an annular rivet groove is processed on the outer wall of the rivet nut, and the nut rod is inserted into the rivet groove after being compressed and deformed at the rivet groove. A threaded portion is processed on the upper end of the rivet nut, and the ball seat insert is connected through the threaded portion.

[0009] Preferably, an insertion portion is provided at the bottom of the upper ball seat, a stepped hole is processed at the upper end of the upper sleeve, the upper ball seat is limited on the stepped surface of the stepped hole, and the insertion portion is inserted into the upper sleeve through the stepped hole.

[0010] Preferably, the outer diameter of the insertion portion is smaller than the inner diameter of the spring.

[0011] Preferably, the length of the threaded portion is less than the depth of the ball seat insert.

[0012] The beneficial effects of the utility model are:

[0013] The device adopts a split structure, the nut rod and the rivet nut are riveted and fixed, while the rivet nut and the upper ball seat are detachable structures. When repair is required, it is only necessary to move the upper jacket downward to expose the upper ball seat upward, which is convenient for overall dismantling, reduces the scrap rate of parts, and allows most parts to be reused. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model. DETAILED DESCRIPTION

[0017] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0018] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0019] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] In addition, in the description of the present invention, “plurality” means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0021] In the present invention, unless otherwise clearly specified and limited, the terms "set", "socket", "connect", "penetrate", "plug in" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] See also Figure 1 and Figure 2 A strut ball head connection structure shown in the figure includes a nut rod 5, and an upper sleeve 6 coaxially sleeved on the outside of the nut rod 5, a spring 4 is sleeved inside the upper sleeve 6, and the spring 4 is coaxially arranged on the outside of the nut rod 5. When the upper sleeve 6 moves downward, the spring 4 is compressed. At this time, the upper end of the nut rod 5 is inserted into the outside of the upper sleeve 6, and a rivet nut 3 is installed on the upper end of the nut rod 5, through which an upper ball seat 1 can be detachably matched; a ball seat insert 2 is embedded in the bottom of the upper ball seat 1, and the rivet nut 3 is threadedly connected to the ball seat insert 2.

[0023] The assembly sequence is to compress the upper jacket 6 with the equipment, the upper jacket 6 will compress the spring 4, then the nut rod 5 will be exposed, and then the riveting nut 3 will be placed in it, riveted by the riveting equipment, and then threadedly connected with the upper ball seat 1. Finally, the equipment releases the pressure, the spring 4 rebounds with the upper jacket 6 and fits with the upper ball seat 1, and the assembly is completed.

[0024] The disassembly process is to compress the upper sleeve 6 and the spring 4 through the equipment, the riveted ball head 3 and the nut rod 5 will be exposed, loosen the threads of the riveted nut 3 and the ball seat insert 2, remove the upper ball seat 1 and release the equipment, and the disassembly is completed. After disassembly, the upper sleeve 6, spring 4, upper ball seat 1 and ball seat insert 2 are injection molded assemblies, and the nut rod 6 and riveted nut 3 riveted parts can be reused.

[0025] See also Figure 2 As shown, an annular rivet groove 31 is processed on the outer wall of the rivet nut 3, and the nut rod 5 is inserted into the rivet groove 31 after being compressed and deformed at the rivet groove 31. A threaded portion 32 is processed on the upper end of the rivet nut 3, and the ball seat insert 2 is connected through the threaded portion 32.

[0026] See also Figure 2As shown, an insertion part 101 is provided at the bottom of the upper ball seat 1, and a stepped hole 601 is processed at the upper end of the upper sleeve 6. The upper ball seat 1 is limited on the stepped surface of the stepped hole 601, and the insertion part 101 is inserted into the upper sleeve 6 through the stepped hole 601.

[0027] In the above technical solution, the end surface of the upper ball seat 1 is limited by the stepped hole 601 to increase the sealing performance after bonding.

[0028] See also Figure 2 As shown, the outer diameter of the insertion portion 101 is smaller than the inner diameter of the spring 4 .

[0029] The above technical solution can prevent the insertion part 101 from interfering with the spring 4 .

[0030] See also Figure 2 As shown, the length of the threaded portion 32 is smaller than the depth of the ball seat insert 2 .

[0031] This structure can ensure the fit after the spiral is tightened.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] For ease of description, spatially relative terms such as "above", "above", "on the upper surface", "above", etc. may be used herein to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0037] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A support rod ball head connection structure, characterized in that: The invention comprises a nut rod (5), and an upper sleeve (6) coaxially sleeved on the outside of the nut rod (5); a spring (4) is sleeved inside the upper sleeve (6); the spring (4) is coaxially sleeved on the outside of the nut rod (5); when the upper sleeve (6) moves downward, the spring (4) is compressed, and the upper end of the nut rod (5) is inserted into the outside of the upper sleeve (6); a rivet nut (3) is installed on the upper end of the nut rod (5), and an upper ball seat (1) is detachably matched with the rivet nut (3).

2. The support rod ball head connection structure according to claim 1, characterized in that: A ball seat insert (2) is embedded in the bottom of the upper ball seat (1), and the rivet nut (3) is threadedly connected to the ball seat insert (2).

3. The support rod ball head connection structure according to claim 2, characterized in that: An annular rivet groove (31) is machined on the outer wall of the rivet nut (3), and the nut rod (5) is inserted into the rivet groove (31) after being deformed by pressure at the rivet groove (31). A threaded portion (32) is machined on the upper end of the rivet nut (3), and the ball seat insert (2) is connected via the threaded portion (32).

4. The support rod ball head connection structure according to claim 1, characterized in that: The bottom of the upper ball seat (1) is provided with an insertion portion (101), the upper end of the upper sleeve (6) is processed with a stepped hole (601), the upper ball seat (1) is limited on the stepped surface of the stepped hole (601), and the insertion portion (101) is inserted into the upper sleeve (6) through the stepped hole (601).

5. The support rod ball head connection structure according to claim 4, characterized in that: The outer diameter of the insertion portion (101) is smaller than the inner diameter of the spring (4).

6. The support rod ball head connection structure according to claim 2, characterized in that: The length of the threaded portion (32) is less than the depth of the ball seat insert (2).

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